Apparatus for setting time-fuses



E. SCHNEIDER.

APPARATUS FOR SETTING TIME `FUSEES. APPLTCATIQN F xLEDJuNE16.1919.'

Patented June 15, 1920.

5 SHEETS-SHEET 1.

E. SCHNEIDER. APPARATUS FOR SETTING TIME FUSES.

APPLICATION FILED JUNE I6; 1919.

Patnted June 15511921?,

5 SHEETS-SHEET 2.

E. SCHNEIDER.

l APPARATUS FOR SETTING TIIVIE FUSES.-

APPLICATION FILED JUNI-:16, Iew.

1,343,588. Patented June 15,1920.

E. SCHNEIDER.

APPARATUS FOR SETTINGTIME FUSES.

APPLICATION FILEDJUNE 16, 1919.

1,343,588. rtenae'rune 15, 1920.

A 5 SHEETS-SHEET 4.

E. SCHNEIDER.

APPARATUS Fon SETTING TIME rusas.

APPLICATION FILED JUNE I6, 1919.

1,343,588.- mmm@ 15,1920f 5 SHEETS- SHEET 5.

-vention is around the body of PATENT ori-fics. f'

UNITED. sTATEQs EueENEsCIIN-EIDER, or rARIs, FRANCE, AssIGNoR To SCHNEIDER sa CIE., 0E rARIs,

FRANCE, A LII/LITER JOINT-smack COMPANY or FRANCE. f

APPARATUS vFOR SETTING TIME-FUSES.

To all whom, it may concern Be ,it known that I, EUGENE SCHNEIDER, a Citizen of the Republic of France, residing at 42 Rue dAnjou, Paris, France, have invented new and useful Improvements in Apparatus for Setting Time-Fuses, which infully set forth in the following specification. l l Y Y yThis invention 'has forits object to provide an improvedsetting apparatus for the known type of time fuses wherein the fuse composition is wound in the form of a helix the fuse, the distance at which the shell-exploding mechanism is to operatebeing determined by the Vpoint vwhere a vent is pierced, said Ypoint being more or less close to the beginning of the Vfuse cord.

The improved fuse-setting apparatus is more particularly designed 'to becapable of being permanently ittedto the gun, for instance by means of a bracket ixed to one of the gun Vcradle trunnions. In these circumstances the improved fuse-setting apparatus fuses.

is intended to be employed for setting carried by shells placed on a loading truck or Aa loading trough, the shell remainingA stationary upon the said trough during the whole of the setting operation, andthe en;

1gagement of the fuse-,setting apparatus upon the ogival nose of the shell being eifected .by a relative displacement between the trough and the fuse-setting apparatus.

The improved fuse-setting apparatus com-` prises in the known manner a box wherein. 'the ogival nose of the shell engages in a correspondingly shaped 'lodgment This box is combined with a socket-in which thefuse is adapted to engage and which can -be rotated around its longitudinal axis, the saidV socket serving as a support Vfor the punch that pierces the vent.- s Y According tol this invention the punchholder may be brought opposite the desired place of the fuse cord without it being necessary to shift-the shell. For this purpose the rotational movement of the punch-holder socket being combined with the longitudinal displacement of the said punch-holder upon this socket; this llongitudinal displacement taking place -along a suitable guide.

In practice, this result is effected in a simple manner by providing on the ',boX .in which the shell engages, a row of bevelteeth over which rolls a bevel pinion keyed on an axle journaled-in the socket. This axle has 'in the'wall a, and it is provided at its Specification of Letters Patent. Patented June 15, 1920. Application-,mica June 16, 1919. serial No. 304,657.' I l Various constructional forms v' of this invention are illustrated by `way of example in the accompanying drawings in which:

.Figure l is a vertical longitudinal section of a first constructional form on the line I-I of Fig. 2.

Fig. 2 isa plan partly in section on the line II-II of Fig. 1; f l

. Fig. 3 is an end elevation viewed `from the left of Figs. l and 2, in partial section onthe line III- III of Fig. l.

Fig. 4 is a partial cross section on the line IV-IV of Fig. 1.

Figs. 5 and 6 are Vpartial sections correshow the parts of the mechanism inthe positions they occupy before the shell is engaged in the improved apparatus.

Fig. 7 is a partial vertical rsection of a modication of the mechanism for actuating the punch-holder socket and the graduated drum that serves for regulating the position',

of the punch. y Fig. 8 is a vertical longitudinal section of a modification of the mechanism for'operating the punch. Figs. 9,1() and 11 are sections respectively on the lines III-IX, X-X and of Fig. 8. Y' Y Y The improved fuse-setting'apparatus comprises a box A whoserinside wall a is shaped in profile to correspond with the .shape of' the ogival nose B of the shell. 'Ihisbox is preferably provided externally with a tenon A1 for guiding it in abracket C formed on a part of the gun carriage,Y for instance on one of thegun cradle trunnions D. 'Ihe inside wall a is formed atfits end with a guide groove a1 for a tenon c ofthe fuse body E.

A. drum F dinal axis of the said boX, is held in a groove end vsponding respectively to Figs. -1 and 2; they arranged along thelongituwith a socket f. The combination F-f is capable of being rotated around its own axis, for which purpose the drum F has a ring of teeth F1 meshing with a bevel pinion (Jr that is keyed on an axleA g journaled in the box A.

H is a punch-holder carriage adapted to receive a helical motion intended to bring the punch i at will oppositeany one of the points` or' the wall of the casing el that incloses the fuse cord e2. Y

For this purpose the carriage H is mounted by means of an internal screwthread 7a upon the screw-'threaded portion Vot' an axle J and journaled in the lodgments formed on the punch-carrying socket F ]c. @ne of these lodgments is, as shown in the drawings, Yformed in the end of the drum F, while the other lodgment is formed" in a bracket f2 projecting from thel socket proper f.

The carriage H is guided longitudinally7 preferably on an axle K. 4Vparallel to the screw-threaded axle J, situated symmetrically to the latter 1n relation to the longitudinal axial plane of the apparatus. This axle performs also a further function in theY saiety, device hereinafter described.

The longitudinal displacement of the carriage H along the screw-threaded axle J and along the axle 1K is imparted to it by a rotational motion of the socket bymeans of a bevel pinion J1 iixed on the said axle J and rolling over a ring outside of the wall a.

Externally, the drum F bears a scale arranged in helical lineswhich are caused by the rotational motion imparted to the socket, to appear at a window Z ormcdin a screen L. This screen which is ot cylindrical form, is guided by` its longitudinal edges L1, L2 in the fixed box A., while it engages by means olf a tenen L3 in aY helical groove F 2 out in the drum F along the scale carried by the latter. A

T he ratio between the number of teeth of the pinion J1 and of the ring of teeth a2, and the pitch of the screw-thread of the axle J, must of course be soselected that the punch will move always opposite the fuse cord e2.

rEhe socket f is pierced with an aperture f1 that allows the punch I to pass through for setting the fuse. A spring z' has a constant tendency to keep the punch I out of the way in the'lodgment reserved'or it in the carriage H.

The said carriage constitutes on the other hand a bearing for an4 axle al upon which is fixed a cam 7a2 designed to vcause the movement of the punch for the purpose of setting the fuse. @n the same axle are keyed the operating levers lil that are connected together by a handle m.

According to this invention the displace-` of teeth t2 formed on the mcnt'oi the punch l in its lodgment is prevented so long as the shell B provided with its fuse E, is not completelyengaged in the fuse-setting apparatus. For this purpose a spring-pusher member N-n is arranged in the end of the socket f, the spring fn having a constant tendency to push the said member inward into the position shown in Fig. 5.

T he said spring-pusher member carries projecting laterally therefrom a stud'n1 engaging with a certain amount of play in a buttonhcl'e-slot of a link O pivoted to the socket f.. Y

The free end of the link O Yis'V forked, the limbs 0 of the fork inclosing between them a tenon Q9 projecting from a slide block l?. The latter is slipped on the kaxle K and is held by means of a projection p1 in a helical groove 7c formed in the said axle.

It will be'clearly perceived that a longitudinal movement of the spring-pusher N will cause a rotational movement of the link O driven 4by the stud nl. This rotational movement'ot' the link produces in its turn by means of a movement ot' the projection p, a longitudinal movement of the nut l), causing thereby a rotational motion ot thc axle If. I

On this axle K thereis adapted to slide an eccentric Q which is provided lfor this purpose with a projection y movable in a groove 741 in the axle K.Y The eccentric Q is also held in the carriage H, so that it will move longitudinally Vwith the'said carriage. The Vrotational motion of the eccentric produces a longitudinal movement of a stop R guided in the carriage H. The punching movement of the punch will be tree to take place or will' be prevented Vaccording as thisY follows: rIAhe operator actuates' a handwheel S after releasing its spring handle s that is normally engaged in the teeth oit a. disk A2 carried by the box A.. rThiscauses a Arotation ofthe pinion G and consequently of the drum F and the socket y together. l

ln'this movement, the pinion J1 rolls over t-he ring of teeth a2 with the result of moving Athepunch-holder:carriage H along the screw J and the guiding axle. K. The whole combination F-f'-H-li/f-mr will hen turn around the longitudinal axis oit' the apparatus, while the punch is movingl longitudinally in front of the aperture' f1.

The rotation of the graduated drum F projecting from the head of the ,causes also as above stated, a longitudinal movement ofthe screen'lL, .the window in the said screen showing `only .a portion lof the scale von both sides of a .register mark L1 vmarked on the said '-screen. When the Y Before the introduction of the shell, the

spring-pusher 'member iT-n occupies the position shown4 in4 Fig.' 5, and the stop R is .thereby engaged under thetappet 11 .of the head of thepunch. Y

TWhen, on engaging the shell in the fusesetting apparatus, the fuse E vhas ybeen inserted right home yin its lodgmfent in the.

socketjthis very rfact willhave moved-'the spring-pusher member N and caused a rota- 1 tional movement Vof the'linkO, as wellas a. f corresponding rotational movementwof the fuse.

' axle K and the eccentric Q. The result is to move the stop R out ofthe way-which thus returns into the positionshown in Figs.`

Q and-3; -Y n.

The punch I will then be exactly `opposite the desired ypoint ofthelfuse cord," and the setting operation can be eected byoperating` the lever M by means of a handle m, which movement by rotating the axle h1 and the cam 171,2, causes the punch to pierce the vThe graduated drum F may,` for the purpose of facilitating the reading of the scale, be constituted by an independent part of the socket f carrying the ring of teeth F1. In this construction, shown in Fig. l7,'this drum y may be provided with a ringl of teeth F3 comprisingl fewer teeth than the ring of teeth F1, and the drum may be actuated by a pinion G1 of smaller diameter than the pinion G. l/Vhile the socket 7 carrying the carriage H will make one complete revolution, the drum F will then make only a partial revolution. Y

Figs. 8-'11 illustrate a modification'. 1n'

A those figures only the modified parts of the improved apparatus are shown in detail.

In this modification the axle h1 carrying'the cam 7b2 for actuating the punch Llinsteadof being carried by the carriage H, Vis carried by a carriage T sliding in a guidef* formed on a bracket f2 projecting from the lodg-V ment of the pusher member N. The cam 71,2 is formed on the end of one of the arms of a bell crank lever, the other arm h3 of which ends in a fork between'theY limbs of which are engaged two studs u projecting from a Y pletely engaged in said socket.

nut U mounted on a screw V.

rlhe square head 'v of this screwis guided in aV lodgment a3 of corresponding shape formed in a box A3 fixed to the box Y A cylindrical tail N1 projecting fromthe center of the pusher N,'-is guided in an axial recess of' the screw V. The. head e of the screw V carries two studs o1 thatfare constantly engaged in the forks w1 of two small levers fw ixed on `an axlefW fj ournaled in the box A3.

Y The operating lever M is fixed on .the sameY axle. I y r It will be perceivedthat on moving the lever hf in the vdirection of the ariow (Fig. 8),'the axle 1V and the small levers w will be caused to rock slightly and thereby move the studs-o1, and consequently the. screw f1;

and the nut U, thereby causing the rotation of the axle h1' and'cam h2.

' rThe advantage of this modification con- Y sists in .this that the operating lever MY is which it. is rendered impossible c for Vthe punch I .tooperate so long as the fuse is not engaged right home in the socket 7c. As shown more particularly in Figs. 8 and 11,-vthe1tail N1 isfformed at its downwardly n bent' point with .a stop Nv2 rwhich,2so long fas vthe pusher N haslnot been forcedright .home

bythe fuse E, will be situated in the path of a iinger fm1 formed on an arm M1 carried by or fixed on the axleW.

vWhat I claim is 1, Apparatus for setting helix wound projectile fuses, comprising aY casing adapted' ioo" to be mounted on the gun carriagel and to Y I receive the ogival nose of a projectile, said casing having a fuse setting socket revolubly mountedY thereon and in axial alinement therewith, means revoluble with said socket forv indicating fuse setting distances, a manually operated fuse punch carried by said socket and means operated by the rotation of said socket for `registering the punch over f the fuse as the socket rotates.

2. Apparatus for setting'helix wound proj ectile fuses, comprising a casing vadapted to be mounted on the gun carriage andto re- ,Y

Ceive the ogival nose of a projectile, said casing having a fuse setting socket revolubly mounted thereon and in axial alinementy therewith, means revoluble with said socket for indicating fuse setting distances, a Ymanually operated fuse punch'carried by said socket, means operated by the rotation of said socket for registeringthe punch over the helical `fuse as the socket rotatesA and spring pressed means for rendering the punch inoperative when the fuse is not com- 3; Apparatus for setting helix wound projectile fuses, comprising a casing adapted to j mounted therein and in axial alinement therewith, a drum provided with a. distance indicating scale, means for simultaneously rotating said socket and scale drum, a fuse punch carried by said socket and means operated by the rotation of said socket for registering the punch over the helical fuse as the socket rotates and springV pressed means for rendering said fuse punch inoperative when` the fuse is not completely engaged in said socket. Y Y

4. Apparatus for setting helix wound projectile fuses, comprising a casing adapted to be mounted on the gun carriage and to receive the ogival end of a projectile, saidcasing having a fuse setting socket revolubly mounted thereon and in axial alinement therewith, a threaded shaft mounted on said socket in a plane through the longitudinal' axis thereof, a punch-holder mounted on said socket provided with aVV manually operated fuse punch and having threaded engagement with said shaft, a guide member supporting said carriage, means vfor simultaneously rotating said socket and shaft whereby the punch is'made to follow said fuse as the socket rotates and spring pressed means normally in thel path of saidv punchholder to preventits operation and adapted to be withdrawn on proper insertion of thefuse in said socket.

5. Apparatus for setting helix wound projectile fuses, comprising a casing adapted to be mounted on the gun carriage and to receive the ogival end of a projectile, said casing havingia fuse settingsocket revolubly mounted thereon and in axial alinement therewith, a threaded shaft mounted on said socket in a plane through the longitudinal axis thereof, a rack on the body portion of said .casing having engagement with said threaded shaft, a fuse punch-holder having threadedengagement with said shaft, a revoluble guide member having. slidable engagement with said holder and provided with a cam operated punch locking member adapted to move in and out of the path of `said punch, springV pressed means controlled by the proper insertion of the fuse in said socl-et for operating said cam through said guide member and means for rotating said socket.

. In testimony whereof I have signed this specification. Y

EUGENE SCHNEIDER. lVitnessesz- 'Y A ANDR Mos'rroimn, CEAS. P. PRESSLY.- 

